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Mortgage Banking and Servicing Rights (Tables)
12 Months Ended
Dec. 31, 2015
Mortgage Banking and Servicing Rights [Abstract]  
Summary of mortgage servicing rights capitalized and related amortization

 

($ in thousands) 2015  2014 
       
Carrying amount, beginning of year $5,704  $5,180 
Mortgage servicing rights capitalized during the year  2,214   1,367 
Mortgage servicing rights amortization during the year  (882)  (612)
Net change in valuation allowance  116   (231)
Carrying amount, end of year $7,152  $5,704 
         
Valuation allowance:        
Beginning of year $412  $181 
Reduction  (116)  231 
End of year $296  $412 
         
Fair Value, beginning of period $6,358  $6,237 
Fair Value, end of period $7,760  $6,358